[PATCH] powerpc: define the variable 'uaccess_flush' as static

The variable 'uaccess_fulsh' is not referenced outside the file. Perhaps we
should define it as static to avoid the warning as follows:

arch/powerpc/kernel/setup_64.c:953:6: warning: symbol 'uaccess_flush'
was not declared. Should it be static?

Reported-by: Hulk Robot <redacted>
Signed-off-by: He Ying <redacted>
---
 arch/powerpc/kernel/setup_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 560ed8b975e7..22aca271496b 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c

@@ -950,7 +950,7 @@ static bool no_entry_flush;
 static bool no_uaccess_flush;
 bool rfi_flush;
 bool entry_flush;
-bool uaccess_flush;
+static bool uaccess_flush;
 DEFINE_STATIC_KEY_FALSE(uaccess_flush_key);
 EXPORT_SYMBOL(uaccess_flush_key);
 

-- 
2.17.1